Sync with upstream NetBSD.
Test: treehugger
Change-Id: Ia88698f032c017fabc8d24bab12f33ed0b55e65e
diff --git a/libc/upstream-netbsd/lib/libc/stdlib/_rand48.c b/libc/upstream-netbsd/lib/libc/stdlib/_rand48.c
index 0468026..6e3e223 100644
--- a/libc/upstream-netbsd/lib/libc/stdlib/_rand48.c
+++ b/libc/upstream-netbsd/lib/libc/stdlib/_rand48.c
@@ -1,4 +1,4 @@
-/* $NetBSD: _rand48.c,v 1.7 2005/06/12 05:21:27 lukem Exp $ */
+/* $NetBSD: _rand48.c,v 1.10 2020/02/23 09:53:42 kamil Exp $ */
/*
* Copyright (c) 1993 Martin Birgmeier
@@ -15,7 +15,7 @@
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: _rand48.c,v 1.7 2005/06/12 05:21:27 lukem Exp $");
+__RCSID("$NetBSD: _rand48.c,v 1.10 2020/02/23 09:53:42 kamil Exp $");
#endif /* LIBC_SCCS and not lint */
#include <assert.h>
@@ -42,15 +42,17 @@
_DIAGASSERT(xseed != NULL);
- accu = (unsigned long) __rand48_mult[0] * (unsigned long) xseed[0] +
- (unsigned long) __rand48_add;
+ accu = (unsigned long) __rand48_mult[0] * (unsigned long) xseed[0];
+ accu += (unsigned long) __rand48_add;
temp[0] = (unsigned short) accu; /* lower 16 bits */
accu >>= sizeof(unsigned short) * 8;
- accu += (unsigned long) __rand48_mult[0] * (unsigned long) xseed[1] +
- (unsigned long) __rand48_mult[1] * (unsigned long) xseed[0];
+ accu += (unsigned long) __rand48_mult[0] * (unsigned long) xseed[1];
+ accu += (unsigned long) __rand48_mult[1] * (unsigned long) xseed[0];
temp[1] = (unsigned short) accu; /* middle 16 bits */
accu >>= sizeof(unsigned short) * 8;
- accu += __rand48_mult[0] * xseed[2] + __rand48_mult[1] * xseed[1] + __rand48_mult[2] * xseed[0];
+ accu += (unsigned long) __rand48_mult[0] * (unsigned long) xseed[2];
+ accu += (unsigned long) __rand48_mult[1] * (unsigned long) xseed[1];
+ accu += (unsigned long) __rand48_mult[2] * (unsigned long) xseed[0];
xseed[0] = temp[0];
xseed[1] = temp[1];
xseed[2] = (unsigned short) accu;